Just had a look at this site re [link=http://www.ealingroad.com/info_rf.html]Frequencies[/link].


Note -

UPDATE!
Recently, everyone is jumping in on the 2.4Ghz bandwagon, and many home devices now use these frequencies. Most annoying are mains monitors, weather stations, and some bright spark has even started using 2.4Ghz for remote control aircraft, which makes putting 2.4Ghz cameras on them much harder. Well done that man!